Teams from 245 buildings nationwide, including the Capitol, are competing in the U.S. Environmental Protection Agency’s second annual national competition among commercial buildings to save energy and fight climate change.

The winner — the building that reduced its energy use the most — will be recognized in November.

At the Capitol, signs are posted and DAGS workers have been going door-to-door to ask building users to conserve energy through various methods, such as turning off lights, hibernating or shutting down computers when not in use, unplugging personal mobile devices and keeping doors closed.